An overall comment, remember to include your name & contact information on each image; this is critical if you're looking for work. Also, a name/description and information (polycount, texture sizes) will be nice once you've got your portfolio site.

On your first character (space pirate?), the brace of pistols should be stuck into the belt; at the moment they're not connected to anything. The scabbard is much too thick; it's made from thick leather. and the opening should be as thick as the sword blade (0.125"-0.25", on average).

BTW, right-clicking on one of your images, selecting copy image location, then clicking the insert image icon (it looks like a yellow landscape) and pasting the image location lets you include your images directly in the forum.

I find the blue background on the second character distracting; it blends with the blue shading on the character. A neutral gray gradient might be a better choice.